To unblock lines, to prepare for maintenance or inspection, when changing the product being conveyed, and to clean the external surface of the structures.
According to the characteristics of the line, the material conveyed and the level of scale present.
Yes. In addition to internal cleaning, hydroblasting removes residue from the external surface and prepares the pipe to receive coatings.
Yes, it is common. That is why the service requires speed and planning, so as not to delay the restart of operations.